The exhibition 'Form follows Rule' brings to the fore the rulebooks without which nothing would be possible in the architecture sector. Acts, ordinances. guidelines and standards have become key participating factors in the design of the built environment. Clearly visible and concrete, critical and in some instances also inadvertently comical, the survey reveals the otherwise invisible backgrounds to architecture and urban development.1:1 installations render these differences physically tangible and suggest the question: What do a country's regulatory bodies say about its society?